Too many open files

[Kai Wang]

I actually changed the nofile by editing the /etc/security/limits.conf 
file. It was only 1024. I have increased it to be bigger than the total 
number of messages the test user has. The test user account contains 
760+ folders and 76000+ messages. I restore the user and deleted it 
again. The problem remains.

[root at lms2 ~]# su - cyrus
-bash-3.00$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
file size               (blocks, -f) unlimited
pending signals                 (-i) 1024
max locked memory       (kbytes, -l) 32
max memory size         (kbytes, -m) unlimited
open files                      (-n) 131072
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 59390
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited


Zachariah Mully wrote:
> On Mon, 2006-06-12 at 14:51 -0600, Kai Wang wrote:
>   
>> Greetings.
>>
>> I'm running Cyrus on Redhat AS4. cyrus complains about too many open 
>> files when I try to delete a user with large number of 
>> mailboxes/messages. I increased /proc/sys/fs/file-max and max number
>> of 
>> open files a few times. The errors still happen. Actually the user is 
>> successfully deleted. I wonder if I should have any concern about
>> these 
>> error messages.
>>
>> [root at lms2 ~]# cat /etc/redhat-release
>> Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
>> [root at lms2 ~]# uname -a
>> Linux lms2.acs.ucalgary.ca 2.6.9-11.ELsmp #1 SMP Fri May 20 18:26:27
>> EDT 
>> 2005 i686 i686 i386 GNU/Linux
>> [root at lms2 ~]# ulimit -a 
>>     
>
> Under debian with the speedblue.org debs, cyrus imapd runs under the
> cyrus user, so you'll want to adjust the file-max for that user, not
> just for root (as you did). Edit /etc/security/limits.conf  
>
> Z
>   

-- 
Kai Wang
System Services
Information Technologies, University of Calgary,
2500 University Drive, N.W.,
Calgary, Alberta, Canada T2N 1N4
Phone (403) 220-2423, Fax (403) 282-9361